P83611 J
Sheet 2 of 4
When calculating the total currents: Use Table 2 to determine the highest value of “RMS Current” for an individual AMT (across the expected operating voltage
range of the AMT’s), then multiply these values by the total number of AMT’s; be sure to add the currents for any other appliances powered by the same source
and include any required safety factors.
If the peak current exceeds the power supplies’ peak capacity, the output voltage provided by the power supplies may drop below the listed voltage range of the
appliances connected to the supply and the voltage may not recover in some types of power supplies. For example, an auxiliary power supply that lacks filtering
at its output stage (either via lack of capacitance and/or lack of battery backup across the output) may exhibit this characteristic.
The AMT Multitone audible appliances produce a brief inrush current that lasts for just 2 microseconds but can reach a peak value of 8.0 Amps (11.2 amps for
FWR input).
AMT MULTITONE SETTINGS:
The Jumper Plug (DP1) and Switch (SW1) of the AMT Multitone Appliances, shown in Figure 1, are used to set the input voltage dBA sound output level and
alarm tone. The factory settings are shown below.
Read these instructions carefully before changing any of these factory settings.
Figure 1:
PC Board Layout Showing Location
of Jumper Plug (DP1) and Switch (SW1)
+PRI 1-
+PRI 2-
+PRI 3-
24
12
24
12
The Factory Settings are:
24VDC:
DP1 SET ON 24
HIGH dBA: SW1 POS 1 = 1
Priority 1 (PRI 1) HORN TONE:
Priority 2 (PRI 2) BELL TONE:
Priority 3 (PRI 3) SIREN TONE:
SW1 POS 2, 3, 4 = 1, 1, 1
NOTES:
1.
Set desired input voltage and dBA sound output level as follows (Refer to Figures 2 and 3).
2.
AMT Multitone Appliances are field set for input voltage and dBA sound output level by inserting a Jumper Plug (DP1) and adjusting a four position Switch
(SW1) as shown in Table 3 and Figures 2 and 3. Use DP1 to select the desired voltage and SW1 Position 1 to select the dBA sound output level.
Table 3: Input Voltage and dBA Sound Output Level Settings
Input Voltage and Decibel Level
DP1 and SW1 Settings
24
VDC
/HIGH
dBA:
Set DP1 on 24; set SW1 POS 1 on 1 (Factory Setting)
24
VDC
/
STD
dBA:
Set DP1 on 24; set SW1 POS 1 on 0
12
VDC
/HIGH
dBA:
Set DP1 on 12; set SW1 POS 1 on 1
12
VDC
/
STD
dBA:
Set DP1 on 24; set SW1 POS 1 on 1
Figure 2:
Figure 3:
Jumper Plug (DP1) Settings
(Use Needle Nose Pliers to Lift and Properly Insert the Jumper Plug)
Switch (SW1) Settings
WARNING: DO NOT APPLY 24VDC INPUT IF THE JUMPER PLUG (DP1) IS SET ON 12. THIS CAN DAMAGE THE UNIT. DOUBLE
CHECK THE JUMPER PLUG (DP1) AND SWITCH (SW1) SETTINGS TO MAKE SURE THEY ARE CORRECT. IMPROPER SETTINGS CAN
DAMAGE THE UNIT OR RESULT IN NO SOUND OUTPUT OR A dBA SOUND OUTPUT LEVEL THAT IS BELOW THE MINIMUM CODE
REQUIREMENTS FOR PUBLIC MODE FIRE PROTECTION, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY
OR DEATH TO YOU AND/OR OTHERS.
NOTES:
1.
The prioritized tones contained in each group is factory pre-set which can not be changed.
2.
The Code 3 Horn and Code 3 Tone (set on HIGH dBA) incorporate the temporal pattern specified by ANSI/NFPA for standard emergency evacuation
signaling. They should be used only for fire evacuation signaling and not for any other purpose.
The Bell Tone can be used on coded systems with a minimum On-Time of 1/4 second if the audible and strobe are wired to operate independently. All other
tones are recommended for use only on continuous (non-coded) systems.
